Subnet Mask; Tcp (Transmission Control Protocol); Tcp/Ip; Udp (User Datagram Protocol) - ICP DAS USA PDS-220F Series User Manual

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14. Subnet Mask

Subnet mask is often simply called the mask. Given its own IP address and its subnet
mask, a host can determine if a TCP/IP packet is destined for a host that is (1) on its
own subnet, or (2) on a different network. If (1), the packet will be delivered directly;
otherwise if, will be delivered via gateways or routers.

15. TCP (Transmission Control Protocol)

TCP provides a reliable flow of data between two hosts. It is associated with tasks
such as dividing the data passed to it from applications into appropriately sized chunks
for the network layer below, acknowledging received packets, setting timeouts to
make certain that the other end acknowledges packets that are sent, and so on.

16. TCP/IP

The transmission Control Protocol (TCP) and the Internet Protocol (IP) are the
standard network protocols. They are almost always implemented and used together
and called TCP/IP. TCP/IP can be used to communicate across any set of
interconnected networks.

17. UDP (User Datagram Protocol)

UDP provides a much simpler service to the application layer. It just sends packets of
data from one host to the other. But there is no guarantee that the packets will reach
the destination host.
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